Lol it could be that it is a little too buggy for the moment so they could have decided to postpone the release. I think the main problem is the external VST plugins compatibility implementation. It is a really hard job to fix it for 3 different OS. For now I have been running Beta 4, 5 and 6 with a great stability on Windows PC and heard of some friends that have been doing that on Mac. They fixed many bugs in the last releases. So... good enough there is not a problem of stability imho. Let's see...